Do scientists know how many cryptic species exist?A．Not yet.B．Yes, they do.C．They will know the answer in another one or two years.D．They will never know the answer.
题目
Do scientists know how many cryptic species exist?
A．Not yet.
B．Yes, they do.
C．They will know the answer in another one or two years.
D．They will never know the answer.
相似考题
更多“Do scientists know how many cryptic species exist?A．Not yet.B．Yes, they do.C．They will know the answer in another one or two years.D．They will never know the answer.”相关问题
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第1题：
We can know that before 1995 Mary 。
A. had two books published
B. received many career awards
C. knew how to use a computer
D. supported the JDRF by writing
正确答案：B
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第2题：
Of all the websites, one that has attracted attention recently is my . Most of this attention has come from the hacks is indeed a tough reality, shutting down the site is not the answer. If my shut down, another site would place. Therefore, the right way is to teach teens how to use the site safely and educate them .One of the good way is to change the privacy setting on your profile to “private” actually post their home and school addresses, date of birth, and so on, often predators know exactly where they will be The most information that is safe is your first name and province. Anything more is basically life.Another big problem is photos. I suggest skipping photos and never posting a photo of a friend online without his or her how well you think you know this person. There are no guarantees that they have told the truth.
- Most of this attention has come from the hacks is indeed a tough reality, shutting down the site is not the answer. {T; F}
- One of the good way is to change the privacy setting on your profile to “private” actually post their home and school addresses, date of birth, and so on. {T; F}
- If my shut down, another site would place. Therefore, the right way is to teach teens how to use the site safely and educate them . {T; F}
- Another big problem is photos. I suggest skipping photos and posting a photo of a friend online without his or her how well you think you know this person. {T; F}
- There are no guarantees that they have told the truth. {T; F}
标准答案：
子问题 1：T; 子问题 2：T; 子问题 3：T; 子问题 4：F; 子问题 5：T
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第3题：
I still don't know ____ advantages one culture has over another one.A.how
B.what
C.whether
D.that
答案：B
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第4题：
Of all the websites, one that has attracted attention recently is my space.com. Most of this attention has come from the hacks is indeed a tough reality, shutting down the site is not the answer. If my space.com shut down, another site would place. Therefore, the right way is to teach teens how to use the site safely and educate them . One of the good way is to change the privacy setting on your profile to “private” actually post their home and school addresses, date of birth, and so on, often predators know exactly where they will be The most information that is safe is your first name and province. Anything more is basically life. Another big problem is photos. I suggest skipping photos and never posting a photo of a friend online without his or her how well you think you know this person. There are no guarantees that they have told the truth.
1. Most of this attention has come from the hacks is indeed a tough reality, shutting down the site is not the answer.
2. One of the good way is to change the privacy setting on your profile to “private” actually post their home and school addresses, date of birth, and so on.
3. If my space.com shut down, another site would place. Therefore, the right way is to teach teens how to use the site safely and educate them .
4. Another big problem is photos. I suggest skipping photos and posting a photo of a friend online without his or her how well you think you know this person.
5. There are no guarantees that they have told the truth.
参考答案：TTTFT
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第5题：
It’s disturbing to note how many of the crimes we do know about were detected ___not by systematic inspections or other security procedures.A. by accident
B. on schedule
C. in general
D. at intervals答案：A解析：by accident“偶然”；on schedule“按时”；in general“通常，大体上”；at intervals“不时”。根据句子结构，所填词与by systematic inspections or other security procedures是对称的，by accident 符合要求。 -
第6题：
How long have you worked here?（）
ASince about two years.
BI do not know.
CFor about two years.
DWho knows.
C
略 -
第7题：
Do you know the girl over there?（）
- A、 How can I know?
- B、Yes, I remember it now.
- C、It's Sam, my teacher's daughter
- D、She is a good girl.
正确答案:C -
第8题：
How do you know the system loading PAK version
正确答案:vi nvram -
第9题：
单选题One of the best features of the journalist’s lifestyle is you never know what’s next.Ayou never know what’s next
Bit’s so unpredictable
Cthat you never know what’s next
Done can never predict what’s next
Eits unpredictability
正确答案： E解析：
原句在位谓语后使用了一个完整的句子，所以不正确。谓语动词后应使用名词短语来代表记者生活方式的特征。 -
第10题：
单选题‘‘May I know the question so that I can ______ for an answer?”Akbar said, “How many crows(乌鸦) are there in this city?”Aask
Bwait
Ctry
Dreach
正确答案： D解析：
考查动词辨析。我可以知道那个问题吗，这样我就能尝试找到答案。try for an answer意为“试图找到答案”，符合语境。 -
第11题：
问答题Almost all Americans want to be democratic, but many Americans are confused about what, exactly, democracy means. How do you know when someone is acting in a democratic or an undemocratic way? Recently several groups have spoken out with particular bitterness against the kind of democracy that means equal opportunity for all, regardless of race or national origin. They act as if all human beings did not belong to one species, as if some races of mankind were inferior to others in their capacity to learn what members of other races know and have invented. Other extremists attack religious groups—Jews or Catholics--or deny the right of an individual to be an agnostic. One reason that these extremists, who explicitly do not want to be democratic, can get a hearing even though their views run counter to the Constitution and our traditional values is that people who do want to be democratic are frequently muddled.正确答案：
几乎所有的美国人都崇尚民主,但是许多美国人并没有搞清民主到底指的是什么。怎么知道某人的行为是民主的还是不民主的呢?最近,一些团体愤愤不平地反对民主,即不分种族国籍,人人机会均等的观点。他们这样做就好像说所有的人类并不属于同一种群,好像某些人种在学习其他人种的经验和发明创造方面的能力不如别人。另外一些极端分子攻击宗教团体——犹太教或天主教——或否认个人信奉不可知论的权利。尽管这些明确表示不想要民主的极端分子的观点同宪法及传统的价值观念背道而驰,他们仍然能够得以陈述自己的观点,其原因就是崇尚民主的人们通常也是糊里糊涂的。解析： 暂无解析 -
第12题：
问答题Let the children learn what all educated persons must some day learn, how to measure their own understanding, how to know what they know or do not know.正确答案：解析： -
第13题：
______to do now is just I am eager to know at first. But how can I get to know it?
A. What, what
B. Will, what
C. Which, which
D. I will, which
正确答案：A
16．答案为A 参考译文：现在要去做的事情就是我首先急切想要知道的事。但是我如何才能知道呢?第一个空what是在不定式短语中，意思是要去做的“事情”。第二个空what是引导表语从句，意思是要知道的“事情”。此题其他选项that或which都不能代替这种意义。 -
第14题：
How do you know ________?A.how old she is
B.how old is she
C.how is she old
D.how is she old
参考答案：A
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第15题：
I know you are planning a trip to Europe this autumn.Do you know_______?
A：how much it will cost
B：how much has it cost
C：how much cost it will
D：how many will it cost
正确答案：A -
第16题：
Once a king was walking around a pool with his ministers（大臣）.Suddenly, he came up with（想出）an idea. He asked,“How many baskets of 41 are there in the pool?” The ministers couldn’t give an answer. The king was angry, “ You 42 answer my questions in three days!”
Three days passed, but 43 of the ministers had the answer. Just then, a child said that he knew it. The king told the ministers 44 the child to the pool. To his surprise, the child 45 and said with a smile, “It is 46 . No need to go to the pool.” This made the king pleased. “All right. Let us know 47 .” The child said, “If you know the 48 of the basket, the answer is known. 49 it is as big as the pool, there is one basket of water; half as big, two baskets… ” “ Stop! That’s it .You have got the answer. They were thinking of things 50 a wrong way .”
Sometimes to get out of the difficulty, one must change one’s way of thinking.
41.________________
A. fish B. flowers C. water
正确答案：C
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第17题：
Moviegoers know that many special effects are created by computers．they often don′t know is that these scenes still require a lot of work．A.That
B.Whom
C.What
D.How答案：C解析：【考情点拨】考查主语从句引导词。
【应试指导】句意：常看电影的人知道许多特效都是通过电脑制作出来的。但他们往往不知道的是制作这些场景还需要投入大量的工作。分析句子结构可知．空格所在从句在整个句子中充当主语，从句中缺少宾语，且宾语指的是事而非人，故选C。 -
第18题：
How long have you worked here?（）
- A、Since about two years.
- B、I do not know.
- C、For about two years.
- D、Who knows.
正确答案:C -
第19题：
Do you know（）in English?
- A、how say it
- B、how to say it
- C、how saying it
- D、how to saying it
正确答案:B -
第20题：
单选题— ______? —I know he spends at least much time watching TV as he does doing his lessons.ADo you know what Tom does all day
BDo you know how Tom does his lessons
CHow do you like Tom’s holiday
DWhat does Tom do with his TV
正确答案： A解析：
句意：——你知道Tom整天做什么吗？——我知道他每天至少花同样的时间看电视和做作业。根据答语可知，此处询问Tom做什么，do you know之后是宾语从句，要用陈述句语序。故答案是A项。 -
第21题：
单选题I know Jonathan quite well and never doubt _____ he can do a good job of it.Awhether
Bwhat
Cwhen
Dwhat
正确答案： C解析：
句意：我对乔纳森十分熟悉，从没怀疑过他做好工作的可能性。that引导宾语从句，修饰doubt。 -
第22题：
问答题Q2: Do you know any different customs of foreign countries? Can you show one or two examples?正确答案：
Yes. I understand that in Thailand, you should never shake hands or touch the head of a monk with your left hand since it is considered very rude. In India, you are supposed to take off your shoes before entering the gate of any temple.解析： 暂无解析 -
第23题：
单选题How long have you worked here?（）ASince about two years.
BI do not know.
CFor about two years.
DWho knows.
正确答案： A解析： 暂无解析